A268749 - OEIS

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A268749 as a simple table

n	a(n)
1	72
2	1760
3	44067
4	1016807
5	22577073
6	487682438
7	10319681062
8	215027310572
9	4425392044505
10	90177748184504
11	1822495416470859
12	36579128848735042
13	729860195814419706
14	14489046573912834959
15	286363070886993749567

[72,1760,44067,1016807,22577073,487682438, 10319681062,215027310572,4425392044505, 90177748184504,1822495416470859,36579128848735042, 729860195814419706,14489046573912834959, 286363070886993749567]